Home / 12,178,261.53-16,805,999.50-7,283,482.88

Finding the Fourth Proportional to 12,178,261.53, 16,805,999.50 and 7,283,482.88

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Solution

The fourth proportional to 12,178,261.53, 16,805,999.50 and 7,283,482.88 is: 10,051,205.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,261.53 : 16,805,999.50 = 7,283,482.88 : x
  2. Step 2: Convert to fraction form
    12,178,261.53/16,805,999.50 = 7,283,482.88/x
  3. Step 3: Cross multiply
    12,178,261.53x = 16,805,999.50 × 7,283,482.88
  4. Step 4: Simplify right side
    12,178,261.53x = 122,406,209,537,299.84
  5. Step 5: Solve for x
    x = 122,406,209,537,299.84/12,178,261.53
  6. Step 6: Final answer
    x = 10,051,205.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.